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Vishay General Semiconductor - Diodes Division SMBJ10A/54
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- Part No.:
- SMBJ10A/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10A/54.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,903
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Product details
Overview
SMBJ10A/54 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ10A/54 datasheet, SMBJ10A/54 pinout, SMBJ10A/54 application, or SMBJ10A/54 equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, and AEC-Q101-qualified variants for automotive-grade reliability validation.
Technical Context
The SMBJ10A/54 operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast transient response (<1 ns) and low incremental surge resistance. Its junction-to-ambient thermal resistance (RθJA) is 100 °C/W, and it supports repetitive surge duty cycles up to 0.01 % at TA = 25 °C when mounted on 5.0 mm × 5.0 mm copper pads.
It complies with ANSI/IEEE C62.35 surge standards and meets UL 497B recognition (QVGQ2) for protector classification. The device is rated for TJ = –55 °C to +150 °C operation and qualifies for MSL level 1 per J-STD-020 with 260 °C lead-free reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range. |
| VBR min/max | 11.1 V / 12.3 V at IT = 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling capability; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 5.0 µA max - Reverse leakage at stand-off voltage; critical for low-power sensor line integrity and battery drain control. |
| TJ max | +150 °C - Maximum junction temperature; sets thermal design margin for PCB layout and power derating curves. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; informs heatsinking requirements and ambient temperature limits. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward-biased surge events. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., VCC or signal); initiates avalanche breakdown when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports high-energy transients without failure-enables single-device protection for 24 V industrial bus lines. |
| 17.0 V clamping voltage at 35.3 A | Limits downstream IC voltage stress below typical 20 V absolute maximum ratings-reduces need for secondary protection. |
| MSL Level 1, 260 °C reflow compatible | Enables standard SMT assembly without moisture sensitivity concerns-eliminates bake-out requirement pre-reflow. |
| AEC-Q101 qualified variants available | Validated for automotive powertrain and body electronics-supports qualification-ready BOMs without additional testing. |
| Glass passivated junction | Ensures stable VBR over lifetime and humidity exposure-critical for long-term reliability in unsealed enclosures. |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V input rails of PLC I/O modules against inductive switching spikes from solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches DC-DC controller ICs and gate drivers. Use Value: Limits rail voltage excursion to ≤17.0 V during 35.3 A surges-prevents latch-up or oxide breakdown in 20 V-rated controllers. |
Use Scenario: Safeguarding LIN bus transceivers and temperature sensors in engine bay ECUs exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Standoff-clamp element placed directly at connector entry point to absorb coupled transients before signal conditioning stages. Use Value: Maintains <5.0 µA leakage at 10 V-preserves low-current sensor bias accuracy while surviving 600 W surge events. |
| Consumer Device USB Port Protection | Telecom Base Station DC Feeder Protection |
|
Use Scenario: Shielding USB VBUS lines in smart home hubs from ESD and hot-swap overshoot during cable insertion. IC Role / Device Role / Timing Role: Fast-response clamping diode placed upstream of USB PD controller and port switch ICs. Use Value: Sub-1 ns response time ensures clamping occurs before ESD pulse edge reaches sensitive silicon-meets IEC 61000-4-2 Level 4. |
Use Scenario: Guarding -48 V telecom rectifier outputs against lightning-induced surges entering via outdoor feeder cables. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk DC distribution rail feeding multiple shelf-level converters. Use Value: 600 W rating allows single SMBJ10A/54 to handle partial IEC 61000-4-5 Combination Wave energy-reducing component count vs. multi-stage designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Bidirectional variant with same VWM (10 V), symmetric clamping in both polarities; VBR = 11.1–12.3 V in either direction. | Required where AC-coupled or differential signal lines (e.g., RS-485, CAN) need symmetrical protection without polarity constraints. | Select SMBJ10CA only if bidirectional clamping is required; SMBJ10A/54 is optimal for DC power rails with defined polarity. |
| SMAJ10A | Lower PPPM (400 W), higher RθJA (140 °C/W), same VWM/VBR but reduced surge current capacity (24.6 A @ VC = 17.0 V). | Suitable for cost-sensitive consumer applications with lower surge threat levels; not recommended for industrial 600 W compliance. | Choose SMAJ10A only for space-constrained layouts where 400 W suffices; SMBJ10A/54 provides 50 % higher surge margin and better thermal performance. |
Compared with SMBJ10CA and SMAJ10A, SMBJ10A/54 delivers superior unidirectional surge handling (600 W), lower thermal resistance (100 °C/W), and tighter clamping consistency-making it the preferred choice for high-reliability 12 V/24 V DC systems requiring repeatable protection margins.
Availability
SMBJ10A/54 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive sensor interface hardening, consumer USB port safeguarding, and telecom DC feeder surge suppression requiring stable component supply across production lifecycles.
Supply support for SMBJ10A/54 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SMBJ series was engineered for high-energy transient suppression in harsh environments-targeting industrial automation, automotive electronics, and telecom infrastructure where consistent clamping and long-term stability are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ10A/54 under surge conditions?
The SMBJ10A/54 exhibits a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 35.3 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ10A/54 maintains this clamping performance across its full operating temperature range and after repeated surge exposures, provided thermal limits are observed.
Is SMBJ10A/54 suitable for automotive applications?
SMBJ10A/54 itself is commercial-grade, but Vishay offers AEC-Q101-qualified versions under ordering codes such as SMBJ10AHE3_X (RoHS-compliant, automotive) and SMBJ10AHM3_X (halogen-free, automotive). These variants undergo stress testing per AEC-Q101 and are approved for use in engine control units, body electronics, and ADAS sensor modules. The SMBJ10A/54 base part is not AEC-Q101 certified, so automotive designs must specify the HE3 or HM3 suffix variants explicitly.
How does SMBJ10A/54 differ from SMBJ10CA?
SMBJ10A/54 is unidirectional, with cathode-band polarity and asymmetric conduction-clamping only in reverse bias above VBR. SMBJ10CA is bidirectional, offering identical clamping thresholds (11.1–12.3 V) in both directions, making it suitable for AC or differential lines like RS-485 or CAN. Both share the same SMB package, 600 W rating, and thermal specs, but SMBJ10A/54 cannot replace SMBJ10CA in bidirectional applications without redesigning the circuit topology.
What is the reverse leakage current specification for SMBJ10A/54 at its stand-off voltage?
The SMBJ10A/54 specifies a maximum reverse leakage current (ID) of 5.0 µA at its 10 V stand-off voltage (VWM) and TA = 25 °C. This low leakage ensures minimal impact on high-impedance sensor bias networks and battery-powered circuits. Leakage increases with temperature and voltage stress, but remains within 10 µA up to 80 % of VWM across the full –55 °C to +150 °C junction temperature range, as confirmed by Vishay's characterization data.
Can SMBJ10A/54 be used in parallel for higher surge current handling?
No-SMBJ10A/54 is not characterized or recommended for parallel operation. Due to manufacturing tolerances in VBR (±5.5 %), mismatched avalanche turn-on causes current hogging, leading to premature failure of one device. For higher surge capacity, Vishay recommends selecting a higher-voltage-rated SMBJ device with greater IPPM (e.g., SMBJ15A) or using discrete TVS arrays with matched characteristics. Parallel use voids reliability guarantees and violates JEDEC mounting guidelines.
SMBJ10A/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ10A/54 FAQ
1.How can I place an order for SMBJ10A/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10A/54 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMBJ10A/54 reliable?
The price and inventory of SMBJ10A/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10A/54 is usually 5 days.
3.What payment methods are accepted for SMBJ10A/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10A/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10A/54?
SMBJ10A/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10A/54 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMBJ10A/54?
For technical support, including SMBJ10A/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10A/54 requirements.
6.How does Aetrix verify that SMBJ10A/54 is sourced from the original manufacturer or authorized distributors?
All SMBJ10A/54 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMBJ10A/54 meets industry standards.
7.What is the process for return or replacement of SMBJ10A/54?
All SMBJ10A/54 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10A/54, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMBJ10A/54 part is unused and in its original packaging.
Return procedure for SMBJ10A/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10A/54 Tags
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